Some metabolic interrelationships among cadmium, lead, copper and zinc: Results from a field survey in Cd-polluted areas in japan part four: Heavy metal ratios and correlations.:PART FOUR: HEAVY METAL RATIOS AND CORRELATIONS

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概要

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• A series of analytical studies on heavy metal distributions in the foods, feces and urinary samples had been presented in this Journal. In the present paper, further statistical analyses on the interrelationship of each heavy metal were done with special reference to the heavy metal ratios and corre-lation coefficient matrices of these metals. Positive correlation coefficients between Cd and Cu in the fecal and urinary samples, which were observed among the inhabitants of Cd-polluted area, dissapeared among the inhabitants of the control area. This indicated the possible depression of Cu intake due to the higher dietary intake of Cd. At these levels of Pb intake observed in the both polluted and control area inhabitants, correlation coefficients of Pb to the other three metals among the former group showed similar values to those of the latter group. The ratios of all pairs of heavy metals in feces were similar to those ratios in rice and the other food samples, but different from those of the urinary metals. This suggests the different metabolism in human organs results the different excretion in the urine and in the feces.

• The Keio Journal of Medicineの論文

著者

• Tsuchiya Kenzaburo

  University Of Occupational And Environmental Health

• Sugita Minoru

  Department Of Biology School Of Education Waseda University

• IWAO SOICHIRO

  Department of Preventive Medicine and Public Health, School of Medicine, Keio University

• IWAO SOICHIRO

  Department o f Preventive Medicine and Public Health, School of Medicine, Keio University

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